Appliance for retaining artificial dentures or artificial teeth in place



C. W. GILLESPIE. APPLIANCE FOR RETAINING ARTIFICIAL DENTURES 0RARTIFICIAL TEETHIN PLACE.

APPLICATION FILED AUG.22, I92I.

. Patnmd Mar. 7,1922.

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CHARLES W. GILLESPIE. OF MARION, INDIANA.

APPLIANCE FOR RETAINING ARTIFICIAL DENTURES OR ARTIFICIAL TEETH INPLACE.

Application filed. August 22, 1921.

To (ZZZ whomit may concern:

Be it known that 1, CHARLES N. Gin-- LESPIE, a citizen of the UnitedStates, residing at Marion, in the county of Grant and State of Indiana,have invented certain new and useful Improvements in an Appliance forRetainin Artificial Dentures or Artificial Teeth in lace; and I dodeclare the following to be afull, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention relates to artificial denture and has special referenceto a plate and means for releasably holding the plate in the properposition in the mouth and preventing the plate from having a tendency towork loose.

It is further desired to provide a structure in which the plate may beprovided with retaining sockets for engaging posts screwed into orotherwise anchored to the jaw bone and thus the. plate engaged withsolid supporting means. By this construction, the plate will be securelyheld in place but may be removed when desired and after being cleaned orrepaired if necessary, easily put back in place. When installingremovable bridgework, it is customary at the present time to provide apivot tooth upon an old root and provide this pivot tooth with a sidepin for fitting into a snap-socket carried by the saddle of the bridgebut in this improved construction, the anchoring pins are screwed intosockets drilled in the jawbone itself and fit into sockets carried bycertain of the teeth of the plate, the sockets of the plate having meansfor frictionally engaging the posts and thus permitting the plate to besecurely but releasably held in' place.

This invention is illustrated in the accompanying drawings, wherein:

Figure 1 is a plan view of the improved plate.

Figure 2 is a view in side elevation showing the plate mounted in themouth.

Figure 3 is an enlarged sectional view taken along the line 33 of Fig.2.

Figure 4 is .a transverse sectional view taken along the line 4 -el ofFig. 3.

Figure 5 is a vertical sectional view through a modified form of socketwith the post shown in elevation.

Specification of Letters Patent.

Serial No. 494,136.

Figure 6 is a transvarse sectional view taken along the line 6-6 of Fig.5.

This improved plate is provided with a saddle 1, which may be formed ofrubber, gold, aluminum or any other suitable material. The saddlecarries the usual teeth which are indicated in general by the nu-Patented Mar. 7,1922.

meral 2. The two jaw teeth 3 are in the 7 form of gold crowns, and arehollow as shown in Fig. 3 of the drawing. Sockets are mounted in thehollow crowns or teeth 3 and as shown clearly in Fig. 3 will extendthrough the saddle 1. Each of these sockets is provided with a base athaving an internally threaded flange 5 into which will be screwed thesleeve 6. This sleeve 6 is provided with an inwardly extending flange 7thus providing a retaining flange and further providing the socket withan entranceopening 8 through which the post 9 will pass when enteringthe socket. This post 9 hasits end portion 10 reduced and threaded andas shown in Fig. 3, this threaded end portion is to be screwed into asocket drilled in the jaw-bone 11. The posts are to be frictionallygripped so that the sockets will be prevented from slipping off theposts and in order to do so, the sockets may be provided with thestructure shown in Figs. 3 and i or with the structure shown in Figs. 5and 6. in the structure shown in Figs. 3 and 4C there has been provideda split sleeve 12 which is positioned in the cup 6 and surrounded by ajacket 13 formed of rubber which will tend to retain the split sleeve ina closed position. When the post is positioned within the split sleeve,this sleeve will be expanded as shown in Fig. l, the tendency of therubber jacket to compress the sleeve and return it to its original sizewill create a frictional binding between the sleeve 12 and post 9. Inthe form shown in Figs. 5 and 6, the split sleeve 12 and rubber jackethave been done away with and in place of the same, there has beenprovided a coiled strip 14: formed of spring metal. This coiled strip14; is positioned within the sockets as shown in Figs. 5 and 6 and whenthe post enters the sockets, the inner convolution of the spring stripwill be expanded and in attempting to return to its original size willprovide the frictional grip upon the post. It will thus be seen. that inboth constructions, the post will be friction- V cui'ely but releasablyheld in placev hen in use, the plate will be cast with the teeth 2 and 3in place. After the natural teeth have all been extracted from thejawbone and the gums have sufiiciently healed to per- Init of installingthe set of false teeth, the nerves will be deadened so that no pain willhe felt and sockets 15 will be drilled in the jaw-hone at their properplaces. After the sockets have been formed, the posts 9 will be put inplace and the threaded end portions will be screwed up into sockets l5.The posts will thus be securely anchored to the jaw-bone and cannot Workloose. It should he further noted that due to this construction, arelatively heavy post can he put in place and will not be liable to bebroken oil. With the posts in place, the plate can be put in place andthe posts will fit into the sockets and as previously explained will bei'rictionally gripped that the plate will be securely held in the properposition.

I claim: l

1. In a dental plate, a tooth carrier, a post :ulapted to be anchored inthe jaw With its outer end portion extending beyond the gum line andforming a. pin, and a socketcarried by the plate and having a cup and acoiled spring in the cup for fitting about the post and trietionallygripping the post to re leasably hold the socket upon the post.

2. In a dental plate, a tooth carrier, a post adapted to be anchored inthe jaw with its outer end portion extending beyond the gum. line andforming a pin, and a socket carried by the plate and having; a cup,abutment means extending inwardly from the *alls of the cup and coiledspring strip in the cup for fitting about the post and frictionallygripping the post to releasubly hold the socket upon the post, saidabutment means retaining the spring in the cup.

3. In a dental plate a tooth carrier, a post adapted to be anchored inthe jaw with its outer end portion extending beyond the gum line andforming a pin, and a socket carried by the plate and having a cupincluding inwardly extending abutment means adjacent its outer end, andpost gripping means in said cup held therein. by said abutment means.

l. In a dental plate, a tooth carrier, a socket carried by said plate,and a post adapted to be anchored in the jaw with its outer end portionextending beyond the gum line for fitting into the socket and holding;the plate in place, said socket comprising a base, a sleeve removahlycarried by said base and provided with inimrdly extending abutmentmeans, and post gripping means in said socket held therein by saidabutn'ient means.

5. Thestructure 01': claim 2 having the soc :ets each provided with abase, a sleeve carried by said base and provided with an internal flangeat its outer end, and a coiled spring strip in said socket for fittingabout a post and tiuctionally gripping the post to releasably hold thesocket upon the post.

in testimony whereof I have hereunto set my hand.

CHARLES W. GILLES PIE.

